A means of propulsion used on spacecraft that allows a ship to travel from point to distant point without actually needing to traverse the space in between.

"You've killed us both," Mikah said with his face strained and white but his voice under control.

"Not quite," Jason told him cheerily. "But I have killed the jump control so we can't get to another star. However there's nothing wrong with our space drive, so we can make a landing on one of the planets—you saw for yourself that there is at least one suitable for habitation."

"Where I will fix the jump drive and continue the voyage to Cassylia. You will have gained nothing."